----* AffectionateNickname: Sahhoo* AscendedExtra: Made it to the 2014 elections as part of the Upcoming Girls.* NiceGirl: Has a calm and relaxed personality, and once she helped a fan who left messages in her Google+ saying he was going to commit suicide.----

Born on 26 November 1995 in Saitama Prefecture.----* AffectionateNickname: Izuriina* AscendedExtra: Was chosen as the center of Team Surprise's "Reborn".----http://static.tvtropes.org/pmwiki/pub/images/280px-okadaayaka42014_3674.jpg'''Okada Ayaka'''

----* AffectionateNickname: Naachan* AscendedExtra: Jumped up to #51st in the 2014 elections and also managed to appear in the senbatsu of "Labrador Retriever."* ButchLesbian: What she's become after her ImportantHaircut: thanks to looking like a boy, she teases her teammates even more than before.* ImportantHaircut: Chopped her hair off and got a very short hairstyle in early 2016.* SeriousBusiness: Her personality. There was also a three episode documentary on [=AKBINGO=] on this.* [[ThoseTwoGuys Those Three Girls]]: Considered one of the "Three Musketeers" with Kojima Mako and Nishino Miki.----

----* AffectionateNickname: Rio, Riorin* TheBusCameBack: A tentative kenkyuusei for the 15th generation, she was oficially made a kenkyuusei in October 2013.* OtakuSurrogate: A fan of ''Anime/AKB0048'' and ''Franchise/LoveLive!''----

Born on 3 September 1998 in Kanagawa prefecture.----* AffectionateNickname: Miyupon* AscendedExtra: Ranked for the first time in the 2015 elections at #67, becoming an Upcoming Girls member. * IdenticalStranger: Fans noticed that she resembles Kanon Kimoto from SKE's Team E.* ImageSong: "Romance Kakurenbo" (a song composed for the trainees to be sung before Team B's 5th stage) holds a special meaning to her. She was chosen to sing it ''solo'' in the 1830m album, a huge privilege for a trainee considering only four songs out of the album were solos, and the other three were sang by very popular members such as Atsuko Maeda.* NamedAfterSomeoneFamous: Her name comes from the Japanese pronunciation of ''Mew'', the famous ''Franchise/{{Pokemon}}''. Her parents thought of naming her Pikachu, but Miyu sounded more normal and the kanji spelling is better (her name is written using the 'beautiful' and 'kind' kanji)* SpellMyNameWithAnS: Her name can be either romanized as Miyu or Miyuu.* VerbalTic: Adds "-pon" at the end of many words.----

----* AffectionateNickname: Renacchi, Katorena* AscendedExtra: She's the less popular [=AnRiRe=] member, but finally managed to rank #32 in the 2014 Senbatsu Election as a member of Under Girls.** She also appeared in senbatsu for Manatsu no Sounds Good!, Sayonara Crawl and Labrador Retriever* ChildhoodFriends: With Kitazawa Saki* ImageSong: "Kaisoku to Doutai Shiryoku", which she was centre of.----

----* AffectionateNickname: Kojimako* AscendedExtra: Was the first member of the new Team 4 (other than Miichan) to get into Senbatsu.* [[ThoseTwoGuys Those Three Girls]]: One of the "Three Musketeers" with Nishino Miki and Okada Nana.----

Appointed as Team 4's captain after Miichan's transfer to Team K during the 2015 shuffle.----* AffectionateNickname: Juri* AscendedExtra: Got to center the coupling number "Himitsu no Diary" on "Mae Shika Mukanee". Also ranked for the first time in 2014, going straight to 28th place, making her an Undergirls member.* EmptyEyes: Other members called her "Messhi", and say she has dead-looking eyes.* FeminineWomenCanCook: Good at baking and often gives her food as a gift.* ShipTease: With Ricchan.----

----* AffectionateNickname: Mio, Miotashu* AscendedExtra: One of only a few fresh Kenkyuusei that has ranked in the Sousenkyo. She ranked 59th during the 5th one. She was also featured in AKB's "Sayonara Crawl" and was chosen as part of the double center with Meru in "Melon Juice".** She managed to jump up from 59th all the way to 27th in the 2014 elections, ending up in Under Girls.* NewTransferStudent: Concurrent with her original group, HKT.----